#C91B18#C91B18

#C91B18 is a mid, highly saturated red. Relative luminance 0.133; OKLCH L 53.5% C 0.206 H 28.4°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#C91B18
RGB	rgb(201, 27, 24)
HSL	hsl(1, 79%, 44%)
HSV	hsv(1, 88%, 79%)
CMYK	cmyk(0%, 86.6%, 88.1%, 21.2%)
CIE-LAB	lab(43.17, 63.80, 48.14)
CIE-LCH	lch(43.17, 79.93, 37.04°)
OKLab	oklab(53.48% 0.1809 0.0977)
OKLCH	oklch(53.48% 0.206 28.4)
XYZ	xyz(24.6474, 13.2715, 2.1279)
Luminance	0.1327 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C91B18 #18C6C9

analogous

#C9186E #C91B18 #C97418

triadic

#C91B18 #18C91B #1B18C9

tetradic

#C91B18 #6EC918 #18C6C9 #7418C9

square

#C91B18 #6EC918 #18C6C9 #7418C9

split-complementary

#C91B18 #18C974 #186EC9

monochromatic

#5C0C0B #921411 #C91B18 #E73A37 #EE706E

Accessibility & contrast

On white

5.75

#C91B18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#C91B18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C91B18

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C91B18	#FFFFFF	#000000	##FFFFFF
##C91B18	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E14

Deuteranopia (green-blind)

#827308

Tritanopia (blue-blind)

#DE001E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #c91b18;
/* rgb */ color: rgb(201, 27, 24);
/* oklch */ color: oklch(53.5% 0.206 28.4);

Tailwind

colors: {
  custom: {
    50: '#e56d58',
    500: '#c91b18',
    950: '#000000',
  },
}

SCSS

$custom: #c91b18;
$custom-light: #e56d58;
$custom-dark: #000000;

JSON

{
  "hex": "#c91b18",
  "rgb": {
    "r": 201,
    "g": 27,
    "b": 24
  },
  "hsl": {
    "h": 1.017,
    "s": 78.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.53476,
    "c": 0.20557,
    "h": 28.4
  },
  "luminance": 0.13267
}

Semantic roles & 50–950 ramp

primary

#C91B18

secondary

#69D2D4

accent

#F2F533

background

#FFF7F5

surface

#FFEDE9

border

#D7C8C5

text

#180803

muted

#867B78

Preview Lab

Preview with #C91B18

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →